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Finding the Fourth Proportional to 19,840.96, 29,760.48 and 7,363.42

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Solution

The fourth proportional to 19,840.96, 29,760.48 and 7,363.42 is: 11,044.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,840.96 : 29,760.48 = 7,363.42 : x
  2. Step 2: Convert to fraction form
    19,840.96/29,760.48 = 7,363.42/x
  3. Step 3: Cross multiply
    19,840.96x = 29,760.48 × 7,363.42
  4. Step 4: Simplify right side
    19,840.96x = 219,138,839.24
  5. Step 5: Solve for x
    x = 219,138,839.24/19,840.96
  6. Step 6: Final answer
    x = 11,044.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.